WASHINGTON (WUSA9) -- Maryland State police say the search is continuing for a Queen Anne's County woman who has not been seen or heard from for the past three days.

Robin L. Pope, 51, of Beach Road in Stevensville, Md dissapeared from her waterfront home on the Chesapeake Bay early Saturday.

Meanwhile, neighbors and friends have continued to conduct their own unofficial searches in the mystifying case and a Facebook page set up by the Queen Anne's County Sherriff's department has logged more than 400,000 hits.

Pope's beloved Great Dane was found dead on a nearby beach Saturday.

Popes estranged husband Wayne reported her missing and has been interviewed by investigators along with other family members but there are no suspects or arrests, police said.

The following press release was issued by the Maryland State Police late Monday:

Robin L. Pope, 51, of Stevensville, Md., a white female, 5"4", 105 lbs., with brown hair, was last seen late on the night of March 1, 2013, in the 100-block of Beach Road, Stevensville, where she had lived with her husband until last December when the couple separated. Her husband reported her missing to the Queen Anne's County Sheriff's Office early on the morning of March 2nd. He said his wife had come by the house late the night before to pick up some belongings and he had left when she arrived. When he returned home her car was still in the driveway, but she was not at the home.

The search for Ms. Pope has been ongoing. Searches of the area around the Pope home began Saturday and continued through Sunday. A sonar-equipped boat from the Queen Anne's County Sheriff's Office searched the Chesapeake Bay behind the home Saturday. The Maryland State Police Underwater Recovery Team divers searched the water behind the home for about six hours yesterday. An aerial search was conducted by a Maryland State Police helicopter. Ground searches were conducted by Natural Resources Police cadaver dogs.

The Pope family dog, an 11-year-old Great Dane, had been found dead Saturday in the water along the shoreline near a pier at a neighboring home. A Queen Anne's County veterinarian examined the dog today and found there were no external traumatic injuries to the dog, as originally suspected. The dog had large tumors in its upper torso region. The veterinarian said the dog did not drown, nor did it die from external injuries. An exact cause of death has not been determined and additional tests are underway.

Investigators have searched homes and vehicles used by the Popes and conducted numerous interviews with families and friends. Police continue to consider all possibilities and have ruled nothing out. Investigators continue to urge anyone with information about Robin Pope to contact them immediately at 410-758-1101. The Maryland State Police Homicide Unit, assisted by investigators from the State Police Criminal Enforcement Division, the Queen Anne's County Sheriff's Office, and uniform personnel from the Natural Resources Police, Sheriff's Office and State Police, is continuing the investigation.